| 摘要 |
PURPOSE:To produce a catalytic soln. enabling satisfactory electroless plating on an electrically insulating substance by aging an aqueous soln. contg. palladium chloride, hydrochloric acid, stannous chloride and alpha,alpha'-dipyridyl each at a specified concn. at a specified temp. CONSTITUTION:An aqueous soln. prepd. by dissolving 0.1-1g/l palladium chloride (PdCl2), 5-30g/l stannous chloride (SnCl2.2H2O) and 1-100mg/l alpha,alpha'- dipyridyl in an aqueous soln. contg. 20-150ml/l hydrochloric acid (37%) is aged at >=80 deg.C to produce a catalytic soln. When an electrically insulating substance such as plastics is activated by treatment with the catalytic soln., perfect electroless plating can be carried out. |
